28215670

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:757

約数の個数: 48

約数和(自身を含む): 59836320

約数和(自身を除く): 31620650

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 89, 98, 178, 245, 445, 490, 623, 647, 890, 1246, 1294, 3115, 3235, 4361, 4529, 6230, 6470, 8722, 9058, 21805, 22645, 31703, 43610, 45290, 57583, 63406, 115166, 158515, 287915, 317030, 403081, 575830, 806162, 2015405, 2821567, 4030810, 5643134, 14107835, 28215670]

約数ペア:

[(1, 28215670), (2, 14107835), (5, 5643134), (7, 4030810), (10, 2821567), (14, 2015405), (35, 806162), (49, 575830), (70, 403081), (89, 317030), (98, 287915), (178, 158515), (245, 115166), (445, 63406), (490, 57583), (623, 45290), (647, 43610), (890, 31703), (1246, 22645), (1294, 21805), (3115, 9058), (3235, 8722), (4361, 6470), (4529, 6230)]